Lamp-glare reducer.



H. I. lBREIINECIIEl LAMP GLARE REDUCER. APPLICATION FILED 1 AII.2I,191e.

Patented Dee. 26,1916.

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UNITED STATES PATENT HERMAN J'. BRENN ECKE, 0F CHICAGO, ILLINOIS,ASSIGNOR OF ONE-HALF 'IO ROBERT MALCOM, OF CHICAGO, ILLINOIS.

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Specication of Letters Patent. Patented Dea?. 26, 191535.,

Application filed January 27, 1916. Serial No. 74,526.

hing, reducing or preventing the glare of automobile lamps and the like,to meet requirements of city ordinances.

The object of the present invention is to provide a highly eiiicient,conveniently adjustable and removable, and comparatively veryinexpensive device for supplying this want of glare reduction, and whichat the same time will not, as so many other devices for this purpose,interfere with the full search light power of thelamp where same isneeded, as on Country roads.

, 1With this object in view the invention consists in the novelconstruction, combination and arrangement of parts, all as hereinafterdescribed in detail, illustrated in the accompanying drawing andincorporated in the appended claims.

' In the drawing-Figure 1 is a-perspective view of an electric lamp foran automobile with my invention applied thereto. F ig. 2 is a reducedperspective view of the electric light bulb and its socket, on a reducedscale, removed from the hood or casing of the lamp and with the shadingor dimming disk detached; F ig. 3 is an enlarged perspective view of thedisk-supporting wire bracket which is removably attached to the ordinaryelectric globe or bulb having the well known bur, or so-called teatthereon. Fig. d is an enlarged side view of the parts shown in Fig. 2,assembled, the disk and its central supporting clasp members being shownin section. Fig. 5 is a perspective view of a section of the wire andthe parts of the clasp member thereon separated.

In the several views 2 represents the hood, body or casing of anordinary lamp, such as used on selil propelling vehicles and 3 is theconventional form of incandescent lamp globe or bulb removably mountedin any of the approved ways, and 4 is the lens, window or transparentfront for the inclosure of the bulb 3. @ne method or reducing the glareis to paint an opaque or translucent circular spot on the glass 4 orcoat the whole glass. This permanently dims the lamp which isundesirable when on country roads, or on dangerous roads outside ofordinance restrictions referred to. Others use detachable devices on thebody 2 which partly or Wholly cover the glass4, which are undesirable onaccount of their cost and the fact that they are often mischievouslyremoved.

In the present invention I provide a dimmer disk 5 having av centralcircular spot 6 that is translucent while the remainder of the disk isof suitably colored transparent material, a popular coloring for thispurpose being amber. rIhis disk 5 I attach to the bulb 3 through themedium of a wire bracket or holder 7 having at one end thereof a loopadapted to pass overthe neck or socket 9 of the bulb 8, and having atthe opposite end what is substantially a glove clasp button 10 stampedon a disk 11 and providing a socket opening 12 for a stud 13 on asimilar disk 11i, the stud 18 having a projecting rim 15 which isfrictionally engaged in the hollow of the head 10. An eye or loop 16engages the stud 13 and said eye or loop 16 is held between the disks 11and la when the two parts are pressed together as in all the figuresexcept Fig. 5. In the center of the disk 6 is mounted the complementalmember of the so called glove clasp, which is formed to provide flanges18 and 19 engaging opposite sides of the disk 6 around an aperture inits center. The body of this clasp member, designated as 20 is formed toprovide an opening 21 similar to the opening 12, which is engaged by thebutton 10. The disk 14e and its stud 13 is a hollow stamping providingin the rear face thereof a recess 22 of approximatelyl conical formadapted to receive the usual pointed bur or teat 23 produced on theordinary lamp bulb in the process of its formation. 'Ihe body of thewire or holder I is curved aboutv the lamp as shown and is preferablylooped in the middle as at 24 to increase the ilexibility of the holderas a whole and to provide a conveniently accessible finger grip.

Colored disks 6, made, for instance, of celluloid, may be provided in avariety of sizes, colorings and thicknesses at insignificant cost, andthe holder 7 with the proper arc oi' curvature is adjustable to any ofthe prevailing sizes of bulbs, and almost instantaneously. Mounting thecolored disk on the tip of the bulb instead oi coloring or IDE oint'somedistance in the rear of the lens, enables the reflector surface of thelamp casf ing to act with substantially its full volume f of light on.the lens after the rays of light producingthe undesirable glare havebeen intercepted or broken up. There is also a very materialvimprovement in the appearance of the clear lens acted upon from ytherear by the colored disk, over the painted or coated lens. Furthermore,unlike dimmers attached to the lamp casing, thus necessitating theprovision of exactly fitting sizes, the present invention in any givensize 'is applicable to any size of lamp casing or incandescent bulbtherewith when the holder wire 7 is made large enough to be expandedtothe maximum not, however, 'conned to the specific form of holdingmeans embodiment is capable of numerous modifications without departingfrom the spirit of my invention.

One of the purposes of the present invention being to reduce cost andinconvenience of installation toa minimum, I have made provision forobviating the manufacture of a variety of sizes of disks by providing inone disk the different sizes. This is accomplished by forming the diskVwith detachable rings or sections represented by the circular lines 25,26 and 27, which, as shown in Fig. 4, are shallow incisions or scores onthe lines of which the desired section or sections may be broken away toreduce the un- 27 represent also size. My inventive idea is hereindescribed, but its Y 4ma be removed to reduce form size to the specificsmaller size required in each individual case, the uniform size, ofcourse, being themaximum size. I n the .drawing 25 represents thecircular scoreand also the outer edge 'of the second largest size, 6representing the disk including all its removablev sections. In likemanner 26 and cessive smaller sizes to the extent lot' the number ofcircular incisions provided in the disk 6.

Having thus described my invention, I- claini as new vand desire tosecure -by Letters Patent v y 1. The combination with a lamp casinghaving a glass front, of a light bulb inclosed within said casing, aflexible holder supported at its ends on, respectively, thebulb socketvand the tip of the bulb, and vfriction clasp members on said holder anddimmer removably holding same together, v l

2. The combination with a lamp body having a transparent front thereonand a lamp therewithin', of a dimmer disk removably attached to saidlamp, said disk having circular incisions which form rings which dis v f3. A dimmer disk having a lseries of removable ring sections thereon,and means for mounting said disk.

In testimony whereof I have hereuntoI signed my name.

HERMAN J. BRENNECKE.

the 'size of said the-peripheries of the sucl 'a dimmer orsaid bulb,

